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Povidone Iodine Mouthwash, Gargle, and Nasal Spray To Letters Povidone Iodine Mouthwash, Gargle, and Nasal Table. Patient Demographics and Baseline Clinical Characteristics Spray to Reduce Nasopharyngeal Viral Load in Intervention group Control group Patients With COVID-19: A Randomized Clinical Trial Characteristic (n = 12) (n = 12) Severe acute respiratory syndrome coronavirus 2 (SARS- Age, median (IQR), y 33 (23-46) 57 (45-68) CoV-2) is primarily transmitted person-to-person through the Male, No. (%) 4 (33) 4 (33) aerosolization of droplets containing contaminated nasopha- BMI,a median (IQR) 22.5 (20.3-24.3) 24.7 (19.9-27.4) ryngeal secretions.1 Povi- Body temperature, 37.3 (36.5-37.5) 36.9 (36.2-37.6) done iodine (PI) solutions at median (IQR), °C Supplemental content concentrations as low as 0.5% Respiratory rate, 16 (14-16) 16 (14-20) rapidly inactivate SARS- median (IQR), cycles/min CoV-2 in vitro with contact times as short as 15 seconds.2 We Pulse oxygen rate, 98 (97-99) 98 (97-99) median (IQR), % investigated whether nasopharyngeal application of PI could re- Medical history, No. (%) duce the viral load of patients with nonsevere coronavirus dis- ease 2019 (COVID-19) symptoms. Diabetes 1 (8) 0 Dyslipidemia 0 4 (33) Methods | We included adult outpatients (≥18 years old) hav- Chronic obstructive 00 pulmonary disease ing tested highly positive (cycle threshold ≤20) for SARS- Hypertension 0 3 (25) CoV-2 ribonucleic acid (RNA) by reverse transcription- polymerase chain reaction (RT-PCR) in nasopharyngeal swabs Smoker, No. (%) 2 (17) 0 within the previous 48 hours. Patients with a history of thy- Clinical signs, No. (%) roid disease were excluded. The study was approved by the Dyspnea 2 (17) 1 (8) South Mediterranean Institutional Review Board, and writ- Chest pain 2 (17) 0 ten informed consent was obtained from all participants. The Anosmia 4 (33) 5 (42) trial protocol is included in Supplement 1. Ageusia 2 (17) 5 (42) Patients underwent an additional nasopharyngeal swab for Tiredness 10 (83) 10 (83) viral quantification at baseline before being randomly as- Cough 4 (33) 6 (50) signed (1:1) to a control group (no intervention, n = 12) or an Body aches 4 (33) 6 (50) intervention group (n = 12). Intervention consisted of 4 suc- cessive mouthwashes and gargles with 25 mL of 1% aqueous Diarrhea 0 2 (17) PI solution each (Mylan, Merignac, France), followed by one Nasal congestion 7 (58) 7 (58) 2.5-mL nasal pulverization of the same solution into each nos- Dysphagia 2 (17) 1 (8) tril using an intranasal mucosal atomization device (MAD Abbreviation: IQR, interquartile range. Nasal, Teleflex, Morrisville, North Carolina) connected to a a BMI indicates body mass index, calculated as weight in kilograms divided by 5-mL syringe while sniffing and 1 application on each nasal mu- height in meters squared cosa of a dab of 10% PI ointment followed by a massage of the Figure. Box Plots Indicating Median, Interquartile Range, and 5th and 95th Percentiles, by Treatment Group A SARS-CoV-2 RNA quantification B SARS-CoV-2 viral titer 107 106 106 105 105 104 /mL 50 103 104 TCID 10 RNA copies/mL 10 102 Log Log 101 103 100 Control Intervention RNA indicates ribonucleic acid; 10–1 102 SARS-CoV-2, severe acute respiratory Baseline 1 3 5 7 Baseline 1 syndrome coronavirus 2; Day postinclusion Day postinclusion TCID50, tissue culture infectious dose. 400 JAMA Otolaryngology–Head & Neck Surgery April 2021 Volume 147, Number 4 (Reprinted) jamaotolaryngology.com © 2021 American Medical Association. All rights reserved. Downloaded From: https://jamanetwork.com/ on 10/01/2021 Letters nostril to help spread the ointment. Patients were trained dur- Anesthesia, Intensive Care and Perioperative Medicine, University Hospital of ing the first decolonization session, and received the neces- Poitiers, Poitiers, France (Frasca). sary materials and a guide to help them perform the follow- Accepted for Publication: December 2, 2020. ing sessions 4 times a day for 5 days. Published Online: February 4, 2021. doi:10.1001/jamaoto.2020.5490 Follow-up was done on day 1 and then every 2 days until Corresponding Author: Olivier Mimoz, MD, PhD, Emergency Department, day 7 to assess the efficacy (viral quantification) and safety of University Hospital of Poitiers, 2 Rue de la Miletrie, Poitiers, France 86021 ([email protected]). the decolonization. Almost all (>95%) of the nasopharyngeal Author Contributions: Dr Guenezan had full access to all of the data in the swabs were taken by the same skilled nurse at least 3 hours af- study and takes responsibility for the integrity of the data and the accuracy of ter the last PI application for quantification of viral RNA using the data analysis. RT-PCR,3 and viral titer using the dilution limit method on Vero Concept and design: Guenezan, Garcia, Lévêque, Frasca, Mimoz. Acquisition, analysis, or interpretation of data: All authors. cells and the Spearman-Karber approach with a limit of de- Drafting of the manuscript: Guenezan, Garcia, Mimoz. 2.5 4 tection of 10 tissue culture infectious dose (TCID50) per mL. Critical revision of the manuscript for important intellectual content: Guenezan, Changes in viral load over time were compared between study Garcia, Strasters, Jousselin, Lévêque, Frasca. groups using a linear mixed model for repeated measures. Statistical analysis: Frasca. Obtained funding: Mimoz. Administrative, technical, or material support: Guenezan, Garcia, Jousselin. Results | All patients completed the study, and none required Supervision: Guenezan, Strasters, Lévêque, Frasca, Mimoz. hospital admission. Compared with the control group, pa- Conflict of Interest Disclosures: Dr Mimoz reported receiving grants from Becton tients in the intervention group were younger (Table). Me- Dickinson and Cooper, and personal fees from Becton Dickinson, Cooper, and 3M, all outside the submitted work. No other disclosures were reported. dian (IQR) age of patients in the control group was 57 (45-68) Funding/Support: This project was supported by the University Hospital of years and in the intervention group was 33 (23-46) years. A total Poitiers, France. This study did not benefit from financial support. of 4 patients (33%) in each group were male. All patients but 1 Role of the Funder/Sponsor: University Hospital of Poitiers, France, had no had negative viral titer by day 3. Use of PI had no influence on role in the design and conduct of the study; collection, management, analysis, changes of viral RNA quantification over time (Figure). Mean and interpretation of the data; preparation, review, or approval of the relative difference in viral titers between baseline and day 1 was manuscript; and decision to submit the manuscript for publication. 75% (95% CI, 43%-95%) in the intervention group and 32% Data Sharing Statement: See Supplement 2. (95% CI, 10%-65%) in the control group (Figure). All patients Additional Contributions: We acknowledge Cynthia Bordage, RN, Bertrand Drugeon, MD, Amélie Mabille, MD, Nicolas Marjanovic, MD, Severine Mousse, exposed to PI experienced unpleasant nasal tingling but com- MSc, Alexandre Rahoui, MD and Camille Raynaud, MD, who assisted in data pleted the study. Thyroid stimulating hormone elevation (me- collection and patient follow-up, Pierre Dupuis, PharmD, who performed the dian [IQR], 3.4 [2.6-4.3] mIU/L vs 2.1 [1.4-3.1] mIU/L at base- biochemical tests, and Jeffrey Arsham for editing assistance, all from the line) was observed in all patients after 5 days of PI exposure, University hospital of Poitiers, France. There was no financial compensation for these contributions. exceeding the upper normal value in 5 patients, with a return Trial Registration: ClinicalTrials.gov Identifier: NCT04371965 to baseline values 7 to 12 days later. No modification in thy- 1. Wiersinga WJ, Rhodes A, Cheng AC, Peacock SJ, Prescott HC. Pathophysiology, roid hormone (T3, T4) or creatinine levels was observed. transmission, diagnosis, and treatment of coronavirus disease 2019 (COVID-19): A Review. JAMA. 2020;324(8):782-793. doi:10.1001/jama.2020.12839 Discussion | Nasopharyngeal decolonization may reduce the car- 2. Frank S, Brown SM, Capriotti JA, Westover JB, Pelletier JS, Tessema B. In riage of infectious SARS-CoV-2 in adults with mild to moder- vitro efficacy of a povidone-iodine nasal antiseptic for rapid inactivation of SARS-CoV-2. JAMA Otolaryngol Head Neck Surg. 2020;146(11):1-5. doi:10.1001/ ate COVID-19.5 Thyroid dysfunction occurred in 42% of the pa- jamaoto.2020.3053 tients exposed to PI, with spontaneous resolution upon 3. Etievant S, Bal A, Escuret V, et al. Performance assessment of SARS-CoV-2 6 treatment discontinuation, as previously reported. Strengths PCR assays developed by WHO referral laboratories. J Clin Med. 2020;9(6):1871. of this study include assessment of viral titer to determine doi:10.3390/jcm9061871 whether the virus was viable and thus potentially transmis- 4. Kärber, G. Beitrag zur kollektiven Behandlung pharmakologischer sible. Limitations include the small number of patients and the Reihenversuche. Archiv f experiment Pathol u Pharmakol. 1934;162:480-483. single-center design. These data call for a larger clinical trial 5. Farrell NF, Klatt-Cromwell C, Schneider JS. Benefits and safety of nasal saline to confirm the benefit of PI in limiting the excretion and re- irrigations in a pandemic—washing COVID-19 away. JAMA Otolaryngol Head Neck Surg. 2020;146(9):787-788. doi:10.1001/jamaoto.2020.1622 sulting human-to-human transmission of SARS-CoV-2, using 6. Pennington JA. A review of iodine toxicity reports. J Am Diet Assoc. 1990;90 lower PI concentrations to minimize adverse effects. (11):1571-1581. Jeremy Guenezan, MD OBSERVATION Magali Garcia, MD, PhD Deidre Strasters, MD Adolescent Presentation of Nasal Clément Jousselin, PhD Chondromesenchymal Hamartoma: Nicolas Lévêque, PharmD, PhD A Case Report and Literature Review Denis Frasca, MD, PhD Nasal chondromesenchymal hamartoma (NCMH) is a very rare Olivier Mimoz, MD, PhD benign tumor of the nasal cavity and paranasal sinuses that usually presents in infancy.
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